package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.minio.MinioProperties;
import com.atguigu.lease.web.admin.service.FileService;
import io.minio.*;
import io.minio.errors.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@Service
public class FileServiceImpl implements FileService {
    @Autowired
    private MinioClient client;
    @Autowired
    private MinioProperties properties;

    @Override
    public String upload(MultipartFile file) throws ServerException, InsufficientDataException, ErrorResponseException, IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidResponseException, XmlParserException, InternalException {

            //判断桶是否存在
            boolean result = client.bucketExists(BucketExistsArgs.builder().bucket(properties.getBucketName()).build());
            if (!result) {
                client.makeBucket(MakeBucketArgs.builder().bucket(properties.getBucketName()).build());

                String policy = """
                         {
                                      "Statement" : [ {
                                        "Action" : "s3:GetObject",
                                        "Effect" : "Allow",
                                        "Principal" : "*",
                                        "Resource" : "arn:aws:s3:::%s/*"
                                      } ],
                                      "Version" : "2012-10-17"
                                    }
                        """.formatted(properties.getBucketName());

                client.setBucketPolicy(SetBucketPolicyArgs.builder().bucket(properties.getBucketName()).config(policy).build());

            }

            //上传文件到minio
            String fileName=new SimpleDateFormat("yyyyMMdd").format(new Date())+"/"+ UUID.randomUUID()+"-"+file.getOriginalFilename();
            client.putObject(PutObjectArgs.builder()
                            .bucket(properties.getBucketName())
                            .stream(file.getInputStream(), file.getSize(), -1)
                            .contentType(file.getContentType())
                            .object(fileName)
                    .build());


            return  String.join("/",properties.getEndpoint(),properties.getBucketName(),fileName);

    }
}
